baber/WOPTO huggingface dataset:
Patent CA-2064922-C (CA)
Title: Tapering sidewalls of via holes
Inventor: JOLLY GURVINDER
IPC: H01L21/311
Filed: 1992-04-02
Granted: 1998-11-24
Abstract: A method of tapering side walls of via holes and a tapered via hole structure for an integrated circuit is provided.  Via holes having steep sidewalls are provided in an insulating layer overlying a conductive layer on a substrate, with an underlying conductive layer exposed at a bottom of each via hole.  A protective layer is provided over the conductive layer in each via hole, and over the sidewalls.  The via holes are then tapered by argon sputter etching to remove the protective layer and part of the insulating layer from the sidewall and around the peripheral edge of each via hole, thereby smoothly tapering the sidewall and providing a via hole increasing continuously in diameter from the bottom to the upper peripheral edge of the via hole.  Via holes of multiple depths are simultaneously and smoothly tapered to the bottom of the via holes Any sputtered debris remaining in the via holes after the sputter etch step is removed by reactive ion etching to clean the conductive layer exposed in each via hole and allow for formation of reliable electrical contacts.
Patent CA-2065457-C (CA)
Title: Method of high-resolution sea bottom prospecting and tuned array of paraboloidal electroacoustic transducers to carry out such method
Inventor: CANNELLI GIOVANNI BOSCO
IPC: G01V1/157
Filed: 1990-09-14
Granted: 1998-07-14
Abstract: A method of and an apparatus for the high-resolution sea bottom prospecting, in which an electroacoustic paraboloidal transducer (P1-P10) is placed into water, the electrodes of which are near the f ocus of the paraboloid and are connected both to a capacitor bank (C1-C10) the capacitance of which may be varied at will and to a supply circuit (G) for the generation of an electroacoustic discharge between said electrodes. As the capacitance varies the delay time between the primary pulse or underwater prospecting pulse and the cavitation pulse is recorded at any discharge, and at the same time dominant frequency of the prospecting signal spectrum is determined. Afterwards capacitance values are set so as to pr ovide both cavitation pulses the contribution of which to the resulting pulse is minimum and a dominant frequency spectrum as broad as possible. The preset capacitance values are assigned to a capacitor array (C1-C10) connected each to an electroacoustic paraboloidal transducer (P1-P10) dipped in water, the electrodes of which are supplied so as to generate the underwater pro specting pulse.
Patent CA-2065505-C (CA)
Title: Drain cleaner dispenser with locking means
Inventor: STERNHEIMER ARTHUR
IPC: B08B9/027
Filed: 1992-04-07
Granted: 1996-11-26
Abstract: A method of cleaning a drain by unlocking and opening a container within a dispenser and dispensing drain cleaner from the container, through an outlet of the dispenser, and into the drain.  The dispenser may have an upwardly extending pin for opening the container.  Alternatively, the dispenser may have a cutter for opening an angled end of the container.  In another alternative, the container may include a plug and a cooperating stem for opening the bottom of the container.  A mechanism for locking the dispenser in an  unused  state  is  included in the dispenser.
Patent CA-2066787-C (CA)
Title: Feedback controller
Inventor: KUROSAWA RYOICHI
IPC: G05B11/36
Filed: 1992-04-22
Granted: 1996-03-19
Abstract: A feedback controller of the present invention comprises a controller.  The controller controls to input a reference value instructing a controlled variable output from an object operated in accordance with a manipulated variable and a controlled variable, to calculate a manipulated variable such that the controlled variable is equal with said reference value, and to supply the calculated manipulated variable to the object.  The controller has a transfer function Gf, and functions to generate the following response waveform f (t) to a disturbance.  That is, a response waveform of the controlled variable at the time when the disturbance is added to the controlled object is set to f (t), a response waveform of said controlled variable in an opened loop state that feedback of said controlled variable is turned off is set to p (t), a relative degree of the disturbance is set to "d", and a relative degree of the controlled object is set to "g", at time in which the disturbance is added to the controlled object, each differential value of the response waveform f (t) up to at least a degree (2g + d - 2) is equal to each dif-ferential value corresponding to the response waveform p (t), and at finite time, each differential value of the response waveform f (t) up to at least a degree (2g + d - 2) becomes zero and after the finite time, the differential values relative to all degrees become zero.
Patent CA-2068391-C (CA)
Inventor: BRAID HAROLD K
IPC: F16F1/10
Filed: 1992-05-11
Granted: 1994-03-01
Abstract: Abstract A coiled ribbon spring comprising a coiled ribbon spring body and, at a free end thereof, a tongue portion having first engagement means for operative connection to an object to be tensioned, said tongue having at a location between said first engagement means and the coiled ribbon spring body, second engagement means co-operable with first engagement means provided on another coiled ribbon spring.          Also an assembly of such springs disposed one above the other working in concert e.g. in pairs.
Patent CA-2069498-C (CA)
Title: Novel copolyesters and articles extrusion blow-molded therefrom
Inventor: SUBLETT BOBBY JONES
IPC: C08G63/199
Filed: 1990-11-28
Granted: 1995-11-21
Abstract: Disclosed are copolyesters containing residues of terephthalic acid, ethylene glycol, 1,4-cyclohexanedimethanol and a tri-functional monomer which are useful in manufacturing rigid containers by extrusion blow-molding processes.
Patent CA-2070913-C (CA)
Title: Melt blown menstrual pad for application to the body
Inventor: WALTERS BRONWEN L
IPC: A61F13/15
Filed: 1992-06-10
Granted: 2003-06-17
Abstract: Improved pads for application to the body to absorb body fluids are disclosed. Menstrual pads having a plurality of projections which are most preferably filled with a superabsorbent material are disclosed, as well as methods for making same. The present invention discloses the use of novel melt-blown technology to form a surface having hollow projections which are then filled with superabsorbent. The present invention is directed to menstrual pads, as well as other pads which may be placed against the body, such as bandages. In the latter, medicinal compounds replace superabsorbents as the preferred material within the projections. In certain embodiments, a wicking layer, preferably comprised of peat moss based absorbent product is disposed between a cover layer and the projections containing superabsorbent.
Patent CA-2072488-C (CA)
Title: Nonaqueous electrolytes
Inventor: WEBBER ANDREW
IPC: H01M10/05
Filed: 1992-06-26
Granted: 2002-10-01
Abstract: A nonaqueous electrolyte for use in electrochemical cells in which the electrolyte comprises a solute, such as LiCF3SO3, dissolved in a mixture of a dioxolane-based solvent, such as dioxolane, and an acyclic ether solvent, such as dimethoxyethane, and wherein the weight ratio of the dioxolane-based solvent to the acyclic ether solvent is less than 45:55 and the volume ratio of the dioxolane-based solvent o the acyclic ether solvent is less than 40:60.
Patent CA-2072509-C (CA)
Inventor: HAUER BIRGIT
IPC: A61K47/44
Filed: 1992-06-26
Granted: 1996-07-30
Abstract: Pharmaceutical compositions comprising a cyclosporin in a novel galenic formulations for oral administration. The compositions typically comprise a cyclosporin, 1,2-propylene glycol, a mixed mono-, di- and tri-glyceride and a hydrophilic surfactant. Further a refined glycerol-transesterified corn oil is provided representing a mixed mono-, di- and tri-glyceride suitable for the novel formulation. Dosage forms include in particular oral dosage forms.
Patent CA-2074012-C (CA)
Title: Air vent system
Inventor: HORTON DONALD L
IPC: F24F13/10
Filed: 1992-07-16
Granted: 1994-04-05
Abstract: AIR VENT SYSTEM            ABSTRACT     An air vent system having an inner tube slidably disposed within a liner.  A lock mechanism is mounted at one end of the inner tube.  A lock pin is disposed at one end of the liner and is constructed to engage the lock mechanism such that the air vent system can be selectively moved between an open position and a closed position.
Patent CA-2075728-C (CA)
Inventor: DU BOIS ALBERT
IPC: A21C3/06
Filed: 1992-08-10
Granted: 1996-05-28
Abstract: Un dispositif pour rouler et mouler de la pâte à produits pâtissiers et boulangers, tels que petits pains ronds, pains à salade, croissants, le dispositif comprenant: (a) un châssis; (b) un tambour rotatif monté sur un axe de rotation, l'axe de rotation étant monté sur le châssis, la surface du tambour possédant des rainures parallèles à l'axe de rotation, l'axe de rotation du tambour étant essentiellement horizontal; (c) un moteur électrique générant le mouvement rotatif du tambour, l'axe de rotation du tambour étant relié au moteur par une transmission; (d) un rouleau guide de forme cylindrique et de diamètre moindre que le tambour rotatif, le rouleau guide étant monté de manière rotative sur le châssis en superposant la surface du tambour de manière à ce que le rouleau guide tourne dans le sens contraire du sens de rotation du tambour sous l'effet de la rotation du tambour; (e) une toile flexible épousant élastiquement une portion de la surface du tambour rotatif; (f) une glissoire montée sur le châssis en superposition au rouleau guide et au tambour; en opération, la glissoire dirige un morceau de pâte à être moulée vers le rouleau guide et le tambour rotatif, passe entre la toile flexible et le tambour rotatif et finalement ressort à l'avant du tambour rotatif en forme roulée.
Patent CA-2079682-C (CA)
Title: Fitting with a worm drive for moving a hinged window or door leaf
Inventor: FEITH ROLAND
IPC: E05D15/32
Filed: 1992-01-30
Granted: 2000-11-14
Abstract: A fitting for operating a pivotable window leaf is provided with a worm drive (19, 9), adapted to be operated by means of a crank, in a drive casing (1) for pivoting a lever arm (11) connected directly or indirectly to the leaf. For the purpose of use at choice for windows mounted on the right-hand side or on the left-hand side, the lever arm (11) can be inserted into the opened drive casing in two positions at an angle of 180° to one another and coupled to the wheel (9) of the worm drive. The free end of the lever arm (11) is preferably connected by means of a connecting link (65) to the leaf (41), the latter being mounted on the frame by two pairs of mounting links (51, 53) of unequal lengths for pivoting about a virtual pivoting axis.
Patent CA-2082580-C (CA)
Title: An improved microstrip antenna device, in particular for telephone transmissions by satellite field of the invention
Inventor: FREYSSINIER PHILIPPE
IPC: H01Q21/06
Filed: 1992-11-10
Granted: 2002-04-02
Abstract: An improved microstrip antenna device, in particular for telephone transmissions by satellite.      An antenna comprises a first dielectric layer including on one side a ground plane and on the other a first conductive patch of a chosen shape, a second dielectric layer surmounts the first dielectric layer on the side adjacent to the first patch and supports, on the other side remote from the first patch, a second conductive patch of a chosen shape. A third dielectric layer surmounts the second. The second patch is of a size smaller than that of the first patch and this first patch is fed from below at at least one chosen point situated between its centre and its circumference. advantageously, the first patch is connected to a lead-in of the ground plane joining a feeding circuit implanted in a dielectric substrate of a three-plate structure.
Patent CA-2082667-C (CA)
Title: Polyamidopolyfunctional amines
Inventor: DOMINGUEZ RICHARD J G
IPC: C08G69/26
Filed: 1992-11-12
Granted: 2004-01-27
Abstract: Polyamidopolyfunctional amines of the following formula are described: (see figure I) where R is independently hydrogen or lower alkyl of 1 to 4 carbon atoms;    R' is an alkyl group if k is 1, or an alkylene group if k is greater than 1; where R' has 2 to 18 carbon atoms;    R" is independently lower alkylene of 2 to 4 carbon atoms;    R"' is independently straight or branched lower alkylene of 2 to 6 carbon atoms; x is independently 1 to 200; y is independently 1 to 300; z is independently 1 to 200; p is independently 2 to 11; and k is from 1 to 8; where the x and z groups may be distributed in blocks or randomly. These compositions are made by reacting a cyclic lactam with a polyether-polyamine. Incorporation. of increasing quantities of the polyetherpoly-amine did not decrease the crystalline melting point (T m) of the resulting copolymer. The polyamidopolyfunctional amines (poly(amide-ether-amide) triblock copolymers) have a relatively low modulus and retain higher use temperatures than current polyetheramide segment block copolymers. The polyamidopolyether amines may be further intercon-nected through reaction with dicarboxylic acids, esters and the like.
Patent CA-2091385-C (CA)
Title: Process for stacking plates, leaves, foils or the like
Inventor: SCHEUCHER PETER
IPC: B65H29/24
Filed: 1993-03-10
Granted: 1999-09-28
Abstract: A process for stacking plates, leaves, foils or the like, the plates or the like being lead to a stack by means of negative pressure or vacuum, the negative pressure or vacuum between the plate or the like and the transport means being switched off, and the plate or the like being thrown onto the stack, characterized in that the negative pressure or vacuum is permanently applied to the transport means and that the negative pressure or vacuum is taken off or cut off from the plate or the like by the plate or the like itself by transporting the plate or the like beyond a predetermined position.
Patent CA-2094406-C (CA)
Title: Method and system for modem controlled multiple communication systems
Inventor: JENNESS ROBERT VINCENT
IPC: H04L29/08
Filed: 1993-04-20
Granted: 1999-05-18
Abstract: A method and system are disclosed for controlling multiple communication sessions while utilizing a modem coupled to a single communication port. A stream of data is coupled to a modem having a data transfer mode and a command mode while that modem is operating in the data transfer mode in a first communication session. A preselected escape character followed by a selected command sequence is inserted into the data stream and is detected and utilized by the modern to automatically initiate a second communication session by specifying the network, node, application, service level and the likefor the second communication session. Thereafter, selected data within the data stream may be preceded by the preselected escape character and a session identification command sequence and thereby accurately identified as associated with a particular communication session, without requiring the data processing terminal application to have knowledge of data packet protocols and formats. In this manner, a single modem coupled to a single communication port within a data processing terminal may be utilized to support multiple communication sessions without adding to the processing overhead within each application supported.
Patent CA-2095053-C (CA)
Title: Network addressing
Inventor: JUDD IAN DAVID
IPC: H04L12/56
Filed: 1993-04-28
Granted: 1999-07-20
Abstract: Described is a network addressing scheme in which a message sent from a source node to a destination node include a path address which defines the path over which the message should travel to reach the destination node. At each node between the source and destination,  the path address is compared against a predetermined value, and on determining that the address  and predetermined value  are  different,  the  node modifies the address before forwarding the message onto the next node. In a switch node having three or more ports, the identity of the output port is determined from the path address  and a portion of the  address  is deleted before sending the message out on that output port. Also described is a method of configuring a network in which one or more initiator nodes are defined,  the initiator nodes issuing query messages to an adjacent node which responds by sending the initiator details of the number of operational ports which are implemented in the adjacent node. The initiator node then issues query messages addressed to those nodes which are attached to the operational ports on the adjacent node. This continues until the initiator has walked through the entire network at which point the configuration process is complete.
Patent CA-2097448-C (CA)
Title: Signal separation circuit
Inventor: SAKURAGI SATOSI
IPC: H04M19/08
Filed: 1993-06-01
Granted: 1998-08-04
Abstract: A signal separation circuit for separating direct current power on a telephone with a transistor. A CPU, which includes an A/D converter, is connected to detect theemitter-collector voltage of the transistor, and to control the base current of the transistor to maintain the emitter-collector voltage constant.
Patent CA-2107168-C (CA)
Title: Disposable absorbent product incorporating chemically reactive means
Inventor: EVERHART DENNIS
IPC: A61F13/42
Filed: 1993-09-28
Granted: 2005-08-23
Abstract: A disposable absorbent product which includes a chemically reactive means having an end point adapted to provide a visual indication of the presence of a substance in mammalian bodily excrement, wherein the chemically reactive means is adapted to: (A) to provide the visual indication as a result of interacting with the mammalian bodily excrement; (B) the end point of the chemically reactive means is adapted to be reached within a period of time which begins with the first insult of the chemically reactive means by the substance and ends when the disposable absorbent product is discarded; and (C) the chemically reactive means is adapted to hame a stable end-point, such that the visual indication remains valid within a period of time which begins when the end point is reached and ends no sooner than when the disposable absorbent product is discarded. If desired, the chemically reactive means can be adapted to provide a visual indication of the approximate concentration of the substance. The disposable absorbent product is utilized in the same manner as a product which lacks the chemically reactive means but which otherwise is functionally similar to the disposable absorbent product. Typical disposable absorbent products include tissues, wipes, and such wearable disposable absorbent products as diapers, feminine case products, incontinent case products, surgical gowns and drapes, and the like.
Patent CA-2110243-C (CA)
Title: Apparatus and methods for making a portion of a first name space available as a portion of a second name space
Inventor: WINTERBOTTOM PHILIP STEVEN
IPC: G06F15/177
Filed: 1993-11-29
Granted: 1998-08-11
Abstract: Apparatus and methods for incorporating a portion (including all) of a first name space into a second name space. An agent operating in the first name space receives first operation specifiers which use names as they are used in the second name space from an entity operating in the first name space and translates the first operation specifiers into second operation specifiers which specify the same operations and use the names as they are used in the first name space. The apparatus and methods are implemented in the Plan 9 operating system. The first and second name spaces areorganized as trees and belong to a first process operating on a first processor and a second process operating on a second processor. The first operation specifiers are Plan 9 file protocols which the first process receives from the second process. The second operation specifiers are Plan 9 file system calls made by the first process. The translation between the file protocols and the system calls is made using a data structure which permits the names in the portion as they are used in the second name space to be mapped onto the names as they are used in the first name space.
Patent CA-2111655-C (CA)
Inventor: HAMMOND DANIEL D
IPC: H04Q3/62
Filed: 1993-12-16
Granted: 1997-09-16
Abstract: An integrated telephone call handling system and method are disclosed.  The system comprises a unified software control for controlling a call between the system and a party, the unified control capable of transferring the call among functional partitions within the system, the functional partitions providing mechanized communication via the network and capable of directing communications between the party and a selected one of the functional partitions.  The unified control includes a unified script language to allow unified scripting of a call from inception to termination, including scripting of interaction between the party and an agent.
Patent CA-2116711-C (CA)
Inventor: STEIN LOTHAR
IPC: B41F35/06
Filed: 1994-03-01
Granted: 1998-04-14
Abstract: The invention relates to a cleaning device for cylinders (1, 2) of a printing press, comprising a cleaning cloth (10) which is unwound from a replaceable supply roll (5) on a clean-cloth spindle (7), guided over a press pad movable against the circumference of a cylinder, and wound onto a dirty-cloth spindle (8), and reversible drive means for a sectional advancement and partial rewinding of said cleaning cloth (10) as well as for rewinding of said cleaning cloth (10) from said dirty-cloth spindle (8) onto said supply roll (9) of said clean-cloth spindle (7). In such a cleaning device a gear wheel (14) is driven by an electronically controlled electric motor (17) and movably mounted, and it can be alternately brought into engagement with a gear wheel (12) fastened on the clean-cloth spindle (7) or with a gear wheel (13) fastened on the dirty-cloth spindle (8).
Patent CA-2123394-C (CA)
Inventor: YURGEVICH HOWARD J
IPC: B62D53/06
Filed: 1994-05-11
Granted: 1999-02-23
Abstract: A chassis attachable to a fifth wheel of a tractor for hauling a freight container has a variable height gooseneck assembly for accommodating either a standard or a reduced tunnel depth freight container seatable on the chassis.  The variable height gooseneck assembly includes a longitudinally extending gooseneck beam and a plate movable to a first position above the longitudinally extending gooseneck beam to support a standard tunnel depth freight container.  A plate support element is movably connected to the plate and the longitudinally extending gooseneck beam, the plate support element being configured to move the plate to a second position that allows supported positioning on the gooseneck assembly of a reduced tunnel depth container.
Patent CA-2124125-C (CA)
Title: Door opener with a lockable, pivotable latch
Inventor: RUTHERFORD JOHN S
IPC: E05B17/00
Filed: 1994-05-24
Granted: 1997-12-23
Abstract: A door opener with a pivotable latch for fitting in a door frame, where a door engages in its closed position with a bolt on a locking surface of the latch for fixing the door position in the door frame and which is characterized in that the latch has a latch base and at least one adapting element, the locking surface is formed on the adapting element, the adapting element is connectable to the latch base and the adapting element has a predeterminable thickness for the adjustment of the door in the closed position.